I was wondering if you guys could tell me what the power is like in both the SPR and a F4R. I have had a 600 and a 1000. The 600 did not have enough power and my 1000 had to much for the road. I was looking into the SPR but was told that the power was pretty flat and peaky. Is this true? What is the power like with the F4R.Please help guide me in the right direction.